Home / 19,688,979.60-29,533,469.40-12,886,534.80

Finding the Fourth Proportional to 19,688,979.60, 29,533,469.40 and 12,886,534.80

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Solution

The fourth proportional to 19,688,979.60, 29,533,469.40 and 12,886,534.80 is: 19,329,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688,979.60 : 29,533,469.40 = 12,886,534.80 : x
  2. Step 2: Convert to fraction form
    19,688,979.60/29,533,469.40 = 12,886,534.80/x
  3. Step 3: Cross multiply
    19,688,979.60x = 29,533,469.40 × 12,886,534.80
  4. Step 4: Simplify right side
    19,688,979.60x = 380,584,081,187,835.12
  5. Step 5: Solve for x
    x = 380,584,081,187,835.12/19,688,979.60
  6. Step 6: Final answer
    x = 19,329,802.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.